KEKA TECHNOLOGIES Intern Interview Questions and Answers

Asking questions on array,string and tree.

Q1. Core skills, college project
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Q1. Basics of machine learning and Deel learning
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Q1. Resume shortlisting
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Q1. What is virtualization
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A basic GD round just formality.

Mettl online test just clear 50% to technical round

Q1. Basic SQL Python easy problems.
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Q2. Pattern of Pascal Triangle
Ans. 
Pascal's Triangle is a mathematical pattern where each number is the sum of the two numbers directly above it.
• Each row starts and ends with 1.

• To get the middle numbers, add the two numbers above it.

• Example: Row 4 - 1 3 3 1 (1+3=4, 3+3=6, 3+1=4)
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Questions asked about dbms,oops,java

Topic on sql joins , dbms

Mental Health in Office

Find lexicographical permutations of string

Yes it was quite easy

Q1. Brief overall analysis
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General Computer Science Questions.

Q1. 2NF and 3NF difference
Ans. 
2NF eliminates partial dependencies, while 3NF eliminates transitive dependencies.
• 2NF eliminates partial dependencies by ensuring all non-key attributes are fully functionally dependent on the primary key.

• 3NF eliminates transitive dependencies by ensuring that non-key attributes are not dependent on other non-key attributes.

• Example: In a table with columns A, B, and C where A is the primary key, if B depends on A and C...read more
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Q2. Alternative of using loop to print 1 to 100
Ans. 
Using recursion to print numbers from 1 to 100 without a loop
• Create a recursive function that takes a number as input and prints it

• Call the function with 1 as the initial input and increment the input by 1 in each recursive call

• Stop the recursion when the input reaches 100
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Q3. Delete and Truncate Difference
Ans. 
Delete removes rows from a table while truncate removes all rows from a table.
• Delete is a DML command while truncate is a DDL command.

• Delete operation can be rolled back while truncate operation cannot be rolled back.

• Delete operation fires triggers on each row deletion while truncate operation does not fire triggers.
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